The Gulfstream Endura is a really nice looking rig.
Jayco has a similar super-C called the Senaca - very plush and well-equipped. It's available with either diesel or gas power and there's a toy-hauler version too.
Personally I think a Class A gives more bang for the buck than a ClassC of the same size - the price is pretty much the same and you usually get much more space underneath (the Class A constrction provides a "basement") and a much better driving position (higher, better road view, better mirrors, etc.). It will be roomier inside too, because the driving area is part of the living room rather than a separate cab.